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Convert indexed Sigma rules into analyst-ready detections.
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Indexed Rules
3,707
Ready to search
Backends
17
Live from sigconverter.io
CLI Versions
10
Newest: 2.0.2
Translation Workspace
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Active Rule
Suspicious Execution of InstallUtil Without Log
Target Profile
Splunk
Splunk SPL & tstats data model queries
Format Mode
Default
Plain SPL queries
Conversion Output
Suspicious Execution of InstallUtil Without Log
Using Splunk · Default · sigma-cli 2.0.2
Translation controls
Adjust the rule on the left, then regenerate when you want a fresh backend-native query.
BackendSplunkFormatDefaultVersion2.0.2
title: Suspicious Execution of InstallUtil Without Log
id: d042284c-a296-4988-9be5-f424fadcc28c
status: test
description: Uses the .NET InstallUtil.exe application in order to execute image without log
references:
- https://securelist.com/moonbounce-the-dark-side-of-uefi-firmware/105468/
- https://learn.microsoft.com/en-us/dotnet/framework/tools/installutil-exe-installer-tool
author: frack113
date: 2022-01-23
modified: 2022-02-04
tags:
- attack.defense-evasion
logsource:
category: process_creation
product: windows
detection:
selection:
Image|endswith: '\InstallUtil.exe'
Image|contains: 'Microsoft.NET\Framework'
CommandLine|contains|all:
- '/logfile= '
- '/LogToConsole=false'
condition: selection
falsepositives:
- Unknown
level: medium
CLI command
Copy the exact command to reproduce this translation locally.
sigma convert --without-pipeline -t splunk -f default rules/windows/process_creation/proc_creation_win_instalutil_no_log_execution.yml